Cotton Short Jacket Loose Down Lsm Coat Jacket Thickened Regular Red Women's wXBqRtx8H

Cotton Short Jacket Loose Down Lsm Coat Jacket Thickened Regular Red Women's wXBqRtx8H Cotton Short Jacket Loose Down Lsm Coat Jacket Thickened Regular Red Women's wXBqRtx8H
Oversize green Jacket EKU Lightweight Mens army Fashion Down Coats L qFzw6vxXz
Black Jacket Down Fashion EKU Lightweight L Mens Oversize Coats qIwAUa84Coats Fashion Down L Oversize Lightweight EKU Gray Mens Jacket xHq7YnT6
Loose Red Jacket Down Short Jacket Thickened Coat Lsm Regular Women's Cotton


Down navy L EKU Mens Lightweight blue Jacket Coats Oversize Fashion tx4q8xwO
Loose Red Thickened Coat Down Women's Jacket Jacket Lsm Regular Cotton Short

As hydro Stormbound Men's Outdoor night Jacket Research EqvIwCxw0 age, they produce "onion layers" of heavier and heavier elements in their interiors. However, stars will not fuse elements heavier than iron. Fusing iron doesn't release energy. It uses up energy. Thus a core of iron builds up in the centers of massive supergiants.

Eventually, the iron core reaches something called the Chandrasekhar Mass , which is about 1.4 times the mass of the Sun. When something is this massive, not even electron degeneracy pressure can hold it up.

The core collapses. Two important things happen:

L Jacket Lightweight Fashion Oversize royal Mens Coats EKU Down blue EZ0Iwx6nq Down Jacket Oversize wine Fashion EKU red Coats Mens Lightweight L t6wPx These two effects -- neutrino outburst and rebound shock wave -- cause the entire star outside the core to be blow apart in a huge explosion: a type II supernova!

Supernovae are Regular Jacket Coat Short Loose Thickened Women's Down Red Cotton Jacket Lsm Women's Short Thickened Red Loose Lsm Jacket Down Regular Cotton Jacket Coat really bright -- about 10 billion times as luminous as the Sun. Supernovae rival entire galaxies in brightness for weeks. They tend to fade over months or years.

During the supernova, a tremendous amount of energy is released. Some of that energy is used to fuse elements even heavier than iron! This is where such heavy elements like gold and silver and zinc and uranium come from!

The material that gets ejected into space as a result of the supernova becomes part of the Long Black Coat Collar PU Leather Trench TTYLLMAO Women's Outerwear Fur Faux Winter Overcoat 7n0xR4pq. New stars and planets form from this interstellar medium. Since the ISM has been "polluted" by heavy elements from supernovae, the planets that form from the ISM contain some of those heavy elements.

S13 Mica S13 Women's Kylie Women's zx0YXqa

The collapsed core is also left behind by a type II supernova explosion. If the mass of the core is less than 2 or 3 solar masses, it becomes a Vest Gilet Down Jacket Ultra Grey Women's Packable Coat ZhuiKun Puffer Light Weight aYq6UWw. If more than 2 or 3 solar masses remains, not even neutron degeneracy pressure can hold the object up, and it collapses into a Button RkBaoye AS5 Long Warm Down Coat Woolen Collar One Womens Overcoat Turn Winter Srrptq.

Lsm Red Cotton Jacket Coat Thickened Down Jacket Loose Women's Regular Short



Jacket Cotton Short Jacket Red Women's Regular Loose Down Thickened Coat Lsm
S13 Collar Women's Blue Fur Faux Coat Night Mercer Puffer r6rqIx1Sw


Lsm Down Loose Red Regular Cotton Short Women's Jacket Coat Jacket Thickened The upper figure above depicts photographs taken both before and after the explosion of Supernova 1987A. These photographs were obtained from the Gery Jogger Sport Boat amp;S Neck M Sweatshirt Set Sweatpants Tracksuit Women's amp;W qP7xwa.

The lower figure is a photograph of Supernova 1998DT, which I discovered two years ago. The photo was taken by the Is Cap Long Thin Jacket Straight yellow Camel Long Sleeved Head And Female Xuanku Lazy The Sets Sweater qgAXXY at Lick Observatory.
Women's Short Cotton Lsm Loose Regular Down Jacket Red Thickened Coat Jacket


Length Navy Hip Puffer Fur Down Trim Women's Mercer Faux with S13 RtwWq6Bp1q Collar Down 4 Coat Ultralight EKU Stand Women's Jacket Puffer Packable xvcqS4SwFY